Obstreperously used in a sentence

Obstreperously in a sentence as an adverb

This is the big difference: people doing their part to help instead of, say, panic-hoarding or obstreperously insisting on going on as if nothing were happening.

There were only two customers in front of me and both were so obstreperously difficult that it became an amusement to watch what ridiculous thing would happen next.

Is it really any different than the most obstreperously puritanical religious zealots harboring plenty of scandalous sin in their personal life?